/**
 * Copyright © 2016-2020 The Thingsboard Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.yes_iot.service.impl;

import lombok.extern.slf4j.Slf4j;
import org.postgresql.util.PSQLException;

import java.util.Optional;

@Slf4j
public abstract class AbstractEntityService {


    protected Optional<PSQLException> extractPGSQLConstraintViolationException(Exception t) {
        if (t instanceof PSQLException) {
            return Optional.of ((PSQLException) t);
        } else if (t.getCause() instanceof PSQLException) {
            return Optional.of((PSQLException) (t.getCause()));
        }else if (t.getCause() != null && t.getCause().getCause() instanceof PSQLException) {
            return Optional.of ((PSQLException) (t.getCause().getCause()));
        } else {
            return Optional.empty();
        }
    }


}
